Chapter 2

• I. Olfactory

  • Facilitates smell
  • No motor nerves

  
• II. Optic

  • Facilitates vision
  • No motor nerves

  
• III. Oculomotor

  • No sensory nerves
  • Muscle that moves the eyes

  
• IV. Trochlear

  • No sensory nerves
  • Nerves that move the eyes

  
• V. Trigeminal

  • Facilitates senses on the face, sinuses, and the teeth
  • Moves the jaw muscles

  
• VI. Abducens

  • No sensory nerves
  • Nerves that move the eyes

  
• VII. Facial

  • Facilitates sense of taste, by way of the tongue and soft palate
  • Facial nerves, salivary glands, and tear glands

  
• VIII. Vestibulocochlear

  • Facilitates senses in the inner ear, for hearing and balance
  • No motor nerves

  
• IX. Glossopharyngeal

  • Facilitates sense of taste and other oral sensations
  • Moves the throat muscles

  
• X. Vagus

  • Perceives information from other organs
  • Nerves that move the internal organs

  
• XI. Spinal Accessory

  • No sensory nerves
  • Nerves that move the neck muscles

  
• XII. Hypoglossal

  • No sensory nerves
  • Nerves that move the tongue muscles